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Математика
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Събиране и изваждане
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Age 6-7
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level: grade1
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Bulgarian
คำแนะนำของผู้เขียน
събиране и изваждане без преминаване, кръг
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-
Математика
-
Събиране и изваждане
-
Age 6-7
-
level: grade1
-
Bulgarian
คำแนะนำของผู้เขียน
събиране и изваждане без преминаване, кръг